Steel and concrete construction.



No. 795,463. PATENTED JULY E5, 1905. o. A. E. TURNER.

STEEL AND CONCRETE GONSEEUGEION.

APPLICATION FILED DEC. 7,1904.

AUNITED STATES PATENT CFFICE.

CLAUDE A. P. TURNER, OF MINNEAPOLIS, MINNESOTA.

STEEL AND CONCRETE CONSTRUCTIONl Specification of Letters Patent.

Patented July 25, 1905.

Application iiledvDeeember 7,1904. Serial No. 235,879.

T0 @ZZ wton it may concern.-

Be it known that I, CLAUDE A'. P. TURNER, of Minneapolis, county of Hennepin, and State of Minnesota, have invented certain new and useful Improvements in a Combined Concrete and Steel Construction, of which the following' is a full, clear, and exact description, reference being had to the accompanying drawings, which form an important part of this specification.

My invention relates generally to fireproof construction, particularly to concrete and steel construction, and more particularly to the construction of fireproof fioors consisting of concrete mass reinforced by steel tie-rods, my purpose being' to provide a spacing and supporting strip for the rod-reinforcement of the fioor-slab to the end that the reinforced cement concrete may be poured in and leveled ofi without special attention of workmen to-keep the said rods in proper position and the proper distance above the bottom of slab to insure protection from the fireproof standpoint.

In the drawings, Fig'ure l is an end elevation of a floor constructed in accordance with my invention before the concrete filling' has been applied, said floor beingsupported by steel I-beams; Fig. 2, a side elevation of the same; Fig. 3, an end elevation of a portion of afioor constructed in accordance with my invention before filling with concrete, but supported by concrete beams; Fig. A, a side elevation of the same; Fig'. a side elevation of a portion of a spacing and supporting' strip. Fig. 6 is a similar view of a modified form of the same; Fig'. 7, a top or plan view of the same; and Fig. 8, a longitudinal section of the same, taken on the line 8 S.

Similar letters referto similar parts throughout the several views.

A is the floor-beams; B, the forms or false work; C, the spacing' and supporting' strips; T, the steel tie-rods, and E the concrete filling.

I construct my floor as follows: The iioorbeams A being erected, I bolt or otherwise secure footing-blocks t to the lower edges thereof, as shown in Figs. 1, 2, and 3. Upon these I erect my forms of false work B, upon which forms, in turn, I place my spacing and supporting' strips C, arranging them parallel with the floor-beams A and preferably equal distances apart and equal distances from the Hoor-beams A,as shown in Figs. l and 3. Upon the spacing and supporting strips C, I now lay the tie-rods D,arranging them transversely to the Hoor-beams A and the spacing-strips C, as shown in Figs. 1, 2, 3, and 4, their end portions resting' upon or overlapping the floorbeams A and their intermediate portions resting in the respective notches bof the said spacing' and supporting strips C. This completes the skeleton of my iioor, which skeleton I now embed by filling the spaces lying between the floor-beams A and above the forms B with cement in the usual manner, thus covering the spacing-strips C and the tie-rods D, as shown in Fig. 4. After the concrete mass has set or solidified I remove the forms or false Work B, which operation completes my floor construction.

My spacing' and supporting strips C may be of a great variety of forms, fou/r different configurations being shown herein. I prefer to make them of sheet-metal strips, as hoopiron, and so configured that either side thereof may be placed uppermost, as shown in Figs. 4, 5, and 6, but may fashion them as shown in Fig's. 7 and Sthat is, I may cut through the metal, as shown by the solid lines c, and bend the portions CZ, partially separated therefrom, into upwardly-turned ears e, bending them upon the dotted lines f, thus forming' nitches g, adapted to receive the tie-rods D, after which I corrugate it transversely, as shown in Fig. 8, thus adapting it to the purposes specified.

It will be observed by reference to Figs. l and 3 that I have shown the ends of the tierods D bentdownward at their ends; but Ido not wish to confine myself to this configuration, as such may not at all times be convenient or necessary, nor do l wish to confine myself to any one or to all of the configurations of' the spacing' and supporting strips herein shown, for it is apparent that other forms than those designed may be used without departing' from the spirit and intent of my invention.

What I claim as new, and desire to secure by Letters Patent, is

1. In concrete steel floor construction, the combination with the fioor-beams, of spacing' and supporting strips arranged parallel with said floor-beams and with their upper edges in a plane with the upper edges of said floorbeams, tie-rods resting' upon and supported by said spacing-Strips and said floor-beams zigzag form and concrete filling surrounding and concrete illmg 1n which the said spaelng said spacing and supporting strips and said and supporting strips and sald tie-rods are tie-rods.

embedded.

2. Incombined concreteandmetal construe- CLAUDE A P TURNER tion, the combination with the Hoor-beams, Witnesses:

the tie-rods extending between said oor- JOHN WUNDER,

l F, J. OBRIEN.

beams, of spacing and supporting strips of 

